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प्रश्न
Why is the ratio of the velocities of light of wavelengths 3000 Å and 5000 Å in vacuum 1 : 1?
लघु उत्तर
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उत्तर
The ratio is 1 : 1 because in a vacuum, the velocity of light is independent of its wavelength. All wavelengths of light travel at the same constant speed of 3 × 108 m/s.
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